Shank button tacker attachment for industrial sewing machines



Sept. 30, 1969 J. c. GlULlAl HO SHANK BUTTON TACKER ATTACHMENT FORINDUSTRIAL SEWING MACHINES Filed May 16, 1968 62:, Ill 17 .17 3': 30

L L U [J 17 fi HT lA/VfA/fOR. Z8 29 Juan! C 6/0/[4/10 Z liJ/f UnitedStates Patent 3,469,546 SHANK BUTTON TACKER ATTACHMENT FOR INDUSTRIALSEWING MACHINES James C. Giuliano 10237 S. Van Ness Ave., Inglewood,Calif. 90303 Filed May 16, 1968, Ser. No. 729,646 Int. Cl. Db 3/16 US.Cl. 112-114 3 Claims ABSTRACT OF THE DISCLOSURE An accessory forindustrial sewing machines to facilitate sewing shank buttons togarments that are in production, said accessory comprising: a bracket(12) to be mounted on the attachment arm (11) of an industrial sewingmachine, said bracket carrying opposed fingers (14 and 15) for guidingeach contacting shank button (19) toward a position in which the eyelet(23) in its shank portion will receive the sewing machine needle on itsnext downward stroke, there being a spring-loaded pressure foot (21) forurging the button toward said fingers, and means for varying the tensionapplied by said pressure foot.

Summary An accessory to be mounted on the attachment arm of anindustrial sewing machine for guiding each shank button individuallytoward a position in which the eyelet 23 in its shank will receive thesewing machine needle in its next downward stroke, said accessorycomprising spring-loaded means for urging said buttons toward saidposition.

In the drawings:

FIGURE 1 is an isometric view of the attachment arm of an industrialsewing machine with the shank button tacker attachment connectedthereto;

FIG. 2 is a side elevation of the shank button tacker attachment showingthe left end of the attachment arm of the sewing machine in phantom andbroken away;

FIG. 3 is a view taken on line 33 of FIG. 2;

FIG. 4 is a view taken on line 44 of FIG. 2; and

FIG. 5 is a view taken on line S5 of FIG. 4.

In the presently preferred embodiment of the invention, as illustratedin the drawings, the shank button tacker attachment is connected to theleft end of the sewing machine attachment arm 11 by means of twohexagonalheaded screws 18a and 18b that extend through the mountingholes 35 and 36 in bracket 12 and are threaded into the arm 11. The leftend of bracket 12 is channelshaped and comprises a pair of spaced legs33 FIG. 2 and 34 FIG. 2 that depend at right angles from the flat topportion of the bracket whose right end overlaps the left end of theattachment mounting arm 11 of the sewing machine.

The right leg 34 of bracket 12 carries two opposed fingers 14 and 15(FIGS. 2 and 4) that are so spaced that the eyeletted end 20' of thebutton shank of a button 19 having an eyelet 23 will not fit betweenthem unless the shank is positioned horizontally as shown in FIG. 4 sothat the axis of the eyelet will be disposed vertically to permit thesewing machine needle to pass thcrethrough. Numeral 27 indicates slotsthrough which socket screws 30 mount finger 14. Numerals 28, 29 indicatesocket screws for mounting finger 15. The left leg 33 supports the leafspring 22.

The button tacker is provided with an adjustable shank stop 13 which issecured to the top surface of the mount- 3,469,546 Patented Sept. 30,1969 "ice ing bracket 12 by means of two socket screws 17 that passthrough the longitudinally extending slot 16 and thence into threadedholes in the bracket 12. The slot 16 is sufliciently long to permit theadjustable shank stop 13 to move longitudinally as far as any adjustmentwould require.

The shank stop has an arm 31 that slopes downward to its lower end 32,which lies in a plane that is perpendicular to the top slotted plate ofthe adjustable shank stop. This lower end 32 is the portion of member 13that limits the movement of the eyeletted shank of the button in thedirection of the attachment mounting arm 11, as clearly shown in FIG. 1where the end of the eyeletted shank may be seen in engagement with theback stop 32.

The pressure foot 21 is secured to the lower end of the pressureadjusting screw 26, as shown in FIGS. 1 and 2. This screw is threadedthrough an internally threaded boss 25 that is integrally secured to theleg 24, which is riveted or otherwise securely fastened to the leafspring 22.

Various modifications may of course be made from the illustrativeembodiment hereinbefore described, and numerous substitutions,reversals, transpositions and additions may be made without departingfrom the broad spirit of the invention.

The inventor claims:

1. An accessory for industrial sewing machines to facilitate the tackingof eyeletted shank buttons, said accessory comprising: a bracket to bemounted on the attachment mounting arm of an industrial sewing machine,said bracket having a pair of spaced members depending therefrom, one ofsaid members carrying opposed fingers for substantially engagingopposite sides of the eyeletted shank of a shank button when the shankof the button is so oriented that the axis of the eyelet is transverseto the top surface of the bracket; a leaf spring for urging the buttontowards said fingers, the other of said members serving as a support forone end of said leaf spring; and a pressure foot for urging the buttontoward said fingers; said pressure foot adjustably mounted on theunsupported end of said leaf spring.

2. The combination set forth in claim 1 in which an internally threadedboss is secured to the free end of said leaf spring, and in which amanually rotatable screw is threaded through said boss for varying thepressure of said pressure foot.

3. The combination set forth in claim 1 with the addition of means forlimiting the movement of the eyelet in one direction, said adjustableelement comprising a plate having a slot therein that is substantiallyparallel to said members, there being a pair of clamping shoulder screwspassing through said slot, the diameter of said shoulder screws beinggreater than the width of said slot, said means comprising an armdepending from the main body of said plate to provide an abutment thatis engageable by said eyelet.

References Cited UNITED STATES PATENTS 2,131,012 9/1938 McCann 112-1143,017,846 1/1962 Lakatta 112114 3,099,971 8/1963 Schwartz et a1. 1l21142,900,935 8/1959 Byers 112114 X 2,962,990 12/ 1960 M-anganiello 112-114MERVIN STEIN, Primary Examiner G. V. LARKIN, Assistant Examiner

